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ECE :: Analog Electronics

Analog Electronics - Section 1
Analog Electronics - Section 2
Analog Electronics - Section 3
Analog Electronics - Section 4
Analog Electronics - Section 5
Analog Electronics - Section 6
Analog Electronics - Section 7
Analog Electronics - Section 8
Analog Electronics - Section 9
Analog Electronics - section-1
Analog Electronics - Section 10
Analog Electronics - Section 11
Analog Electronics - Section 12
Analog Electronics - Section 13
Analog Electronics - Section 14
Analog Electronics - Section 15
Analog Electronics - Section 16
Analog Electronics - Section 17
Analog Electronics - Section 18
Analog Electronics - Section 19
Analog Electronics - Section 20
Analog Electronics - Section 21
Analog Electronics - section-22
Analog Electronics - Section-23

  1. In a half wave voltage doubler circuit the input frequency is 50 Hz. The ripple frequency is

    2. A.
    25 Hz
    B.
    50 Hz
    C.
    100 Hz
    D.
    150 Hz

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  2. Class A amplifiers are preferred when

    3. A.
    minimum distortion is required
    B.
    maximum voltage gain is required
    C.
    output signal is desired in phase with input signal
    D.
    signal having A.C. superimposed on D.C. are to be amplified

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  3. In figure the source resistance of current source IEE is infinite, then common mode gain is

    4. A.
    infinite
    B.
    zero
    C.
    indeterminate
    D.

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  4. Which of the following circuit would be preferred for a 355 KHz IF amplifier?

    5. A.
    Resistance loaded
    B.
    Double tuned transformer
    C.
    Video amplifier
    D.
    Class C

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  5. In a series regulated power supply circuit, the voltage gain Av, of the 'pass' transistor satisfies the condition

    6. A.
    Av → ∞
    B.
    1 << Av < ∞
    C.
    Av ≈ 1
    D.
    Av << 1

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  6. Assertion (A): In CC amplifier the collector is at ac ground

    Reason (R): CC amplifier is also called emitter follower

    7. A.
    Both A and R are correct and R is correct explanation for A
    B.
    Both A and R are correct but R is not correct explanation for A
    C.
    A is correct R is wrong
    D.
    A is wrong R is correct

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  7. The circuit consisting of two transistor connected in series with the d.c. supply voltage is called

    8. A.
    push pull
    B.
    differential pair
    C.
    stacked V+
    D.
    complementary symmetry

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  8. Common emitter transistor has

    9. A.
    high current and high voltage gain
    B.
    low current gain and low voltage gain
    C.
    high current gain and low voltage gain
    D.
    low current and voltage gain

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  9. A three terminal monolithic IC regulator can be used as

    10. A.
    an a adjustable output voltage regulator alone
    B.
    an adjustable output voltage regulator & a current regulator
    C.
    a current regulator & a power switch
    D.
    a current regulator alone

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  10. Which of the following is not the main characteristic of a FET?

    11. A.
    Drain resistance
    B.
    Forward transconductance
    C.
    Temperature stability
    D.
    Amplification factor

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